
#XOR-π

a = '3.[羊城杯 2020]RRRRRRRSA.1415926535897932384626433832795028841971'
b = '85 66 80 83 74 1 13 2 15 81 5 83 89 20 85 10 5 3.[羊城杯 2020]RRRRRRRSA 30 9 3.[羊城杯 2020]RRRRRRRSA 85 86 27 87 4 4 91 85 86 26 13 83 86 86 0 1 5 80 92 85 76'
b1=b.split(" ")
# print(b1)
# print(len(a),len(b1))
# print(ord("3.[羊城杯 2020]RRRRRRRSA"))#51
# print(85^51)#102
# print(chr(102))#f
flag=""
for i in range(len(a)):
    tmp=ord(a[i])^int(b1[i])
    tmp=chr(tmp)
    flag+=tmp
    print(flag)
print(flag)
